Finding the Fourth Proportional to 116,900.81, 175,308.12 and 42,000.86

Step by Step Solution

1. Step 1: Write the proportion equation
   116,900.81 : 175,308.12 = 42,000.86 : x
2. Step 2: Convert to fraction form
   116,900.81/175,308.12 = 42,000.86/x
3. Step 3: Cross multiply
   116,900.81x = 175,308.12 × 42,000.86
4. Step 4: Simplify right side
   116,900.81x = 7,363,090,928.44
5. Step 5: Solve for x
   x = 7,363,090,928.44/116,900.81
6. Step 6: Final answer
   x = 62,985.80