Finding the Fourth Proportional to 153,687,959.10, 212,088,749.49 and 83,123,648.10

Step by Step Solution

1. Step 1: Write the proportion equation
   153,687,959.10 : 212,088,749.49 = 83,123,648.10 : x
2. Step 2: Convert to fraction form
   153,687,959.10/212,088,749.49 = 83,123,648.10/x
3. Step 3: Cross multiply
   153,687,959.10x = 212,088,749.49 × 83,123,648.10
4. Step 4: Simplify right side
   153,687,959.10x = 17,629,590,578,575,814
5. Step 5: Solve for x
   x = 17,629,590,578,575,814/153,687,959.10
6. Step 6: Final answer
   x = 114,710,291.44