Finding the Fourth Proportional to 72,204,924, 99,642,210.03 and 39,165,090.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,204,924 : 99,642,210.03 = 39,165,090.42 : x
2. Step 2: Convert to fraction form
   72,204,924/99,642,210.03 = 39,165,090.42/x
3. Step 3: Cross multiply
   72,204,924x = 99,642,210.03 × 39,165,090.42
4. Step 4: Simplify right side
   72,204,924x = 3,902,496,165,473,581
5. Step 5: Solve for x
   x = 3,902,496,165,473,581/72,204,924
6. Step 6: Final answer
   x = 54,047,507.42