Finding the Fourth Proportional to 103,591.99, 142,834.67 and 70,902.17

Step by Step Solution

1. Step 1: Write the proportion equation
   103,591.99 : 142,834.67 = 70,902.17 : x
2. Step 2: Convert to fraction form
   103,591.99/142,834.67 = 70,902.17/x
3. Step 3: Cross multiply
   103,591.99x = 142,834.67 × 70,902.17
4. Step 4: Simplify right side
   103,591.99x = 10,127,287,699.72
5. Step 5: Solve for x
   x = 10,127,287,699.72/103,591.99
6. Step 6: Final answer
   x = 97,761.31