Finding the Fourth Proportional to 102,066.24, 153,117.72 and 42,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   102,066.24 : 153,117.72 = 42,061.31 : x
2. Step 2: Convert to fraction form
   102,066.24/153,117.72 = 42,061.31/x
3. Step 3: Cross multiply
   102,066.24x = 153,117.72 × 42,061.31
4. Step 4: Simplify right side
   102,066.24x = 6,440,331,121.82
5. Step 5: Solve for x
   x = 6,440,331,121.82/102,066.24
6. Step 6: Final answer
   x = 63,099.52