Finding the Fourth Proportional to 78,070.32, 107,737 and 42,260.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,070.32 : 107,737 = 42,260.62 : x
2. Step 2: Convert to fraction form
   78,070.32/107,737 = 42,260.62/x
3. Step 3: Cross multiply
   78,070.32x = 107,737 × 42,260.62
4. Step 4: Simplify right side
   78,070.32x = 4,553,032,416.94
5. Step 5: Solve for x
   x = 4,553,032,416.94/78,070.32
6. Step 6: Final answer
   x = 58,319.63