Finding the Fourth Proportional to 116,903.61, 175,312.35 and 42,003.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,903.61 : 175,312.35 = 42,003.72 : x
2. Step 2: Convert to fraction form
   116,903.61/175,312.35 = 42,003.72/x
3. Step 3: Cross multiply
   116,903.61x = 175,312.35 × 42,003.72
4. Step 4: Simplify right side
   116,903.61x = 7,363,770,861.94
5. Step 5: Solve for x
   x = 7,363,770,861.94/116,903.61
6. Step 6: Final answer
   x = 62,990.11