Finding the Fourth Proportional to 78,110.86, 107,792.83 and 42,300.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,110.86 : 107,792.83 = 42,300.76 : x
2. Step 2: Convert to fraction form
   78,110.86/107,792.83 = 42,300.76/x
3. Step 3: Cross multiply
   78,110.86x = 107,792.83 × 42,300.76
4. Step 4: Simplify right side
   78,110.86x = 4,559,718,631.55
5. Step 5: Solve for x
   x = 4,559,718,631.55/78,110.86
6. Step 6: Final answer
   x = 58,374.96