Finding the Fourth Proportional to 156,870, 216,482.00 and 85,250.03

Step by Step Solution

1. Step 1: Write the proportion equation
   156,870 : 216,482.00 = 85,250.03 : x
2. Step 2: Convert to fraction form
   156,870/216,482.00 = 85,250.03/x
3. Step 3: Cross multiply
   156,870x = 216,482.00 × 85,250.03
4. Step 4: Simplify right side
   156,870x = 18,455,095,485.80
5. Step 5: Solve for x
   x = 18,455,095,485.80/156,870
6. Step 6: Final answer
   x = 117,645.79