Finding the Fourth Proportional to 77,883.55, 107,479.15 and 42,073.45

Step by Step Solution

1. Step 1: Write the proportion equation
   77,883.55 : 107,479.15 = 42,073.45 : x
2. Step 2: Convert to fraction form
   77,883.55/107,479.15 = 42,073.45/x
3. Step 3: Cross multiply
   77,883.55x = 107,479.15 × 42,073.45
4. Step 4: Simplify right side
   77,883.55x = 4,522,018,643.57
5. Step 5: Solve for x
   x = 4,522,018,643.57/77,883.55
6. Step 6: Final answer
   x = 58,061.28