Finding the Fourth Proportional to 112,999, 155,938.50 and 62,012.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,999 : 155,938.50 = 62,012.02 : x
2. Step 2: Convert to fraction form
   112,999/155,938.50 = 62,012.02/x
3. Step 3: Cross multiply
   112,999x = 155,938.50 × 62,012.02
4. Step 4: Simplify right side
   112,999x = 9,670,061,380.77
5. Step 5: Solve for x
   x = 9,670,061,380.77/112,999
6. Step 6: Final answer
   x = 85,576.52