Finding the Fourth Proportional to 153,687,869.10, 212,088,624.89 and 83,123,557.56

Step by Step Solution

1. Step 1: Write the proportion equation
   153,687,869.10 : 212,088,624.89 = 83,123,557.56 : x
2. Step 2: Convert to fraction form
   153,687,869.10/212,088,624.89 = 83,123,557.56/x
3. Step 3: Cross multiply
   153,687,869.10x = 212,088,624.89 × 83,123,557.56
4. Step 4: Simplify right side
   153,687,869.10x = 17,629,561,018,449,546
5. Step 5: Solve for x
   x = 17,629,561,018,449,546/153,687,869.10
6. Step 6: Final answer
   x = 114,710,166.27