Finding the Fourth Proportional to 812,123,359.34, 1,120,731,656.56 and 440,845,642.22

Step by Step Solution

1. Step 1: Write the proportion equation
   812,123,359.34 : 1,120,731,656.56 = 440,845,642.22 : x
2. Step 2: Convert to fraction form
   812,123,359.34/1,120,731,656.56 = 440,845,642.22/x
3. Step 3: Cross multiply
   812,123,359.34x = 1,120,731,656.56 × 440,845,642.22
4. Step 4: Simplify right side
   812,123,359.34x = 494,069,666,885,771,840
5. Step 5: Solve for x
   x = 494,069,666,885,771,840/812,123,359.34
6. Step 6: Final answer
   x = 608,367,757.44