Finding the Fourth Proportional to 123,462.16, 170,368.95 and 72,476.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,462.16 : 170,368.95 = 72,476.98 : x
2. Step 2: Convert to fraction form
   123,462.16/170,368.95 = 72,476.98/x
3. Step 3: Cross multiply
   123,462.16x = 170,368.95 × 72,476.98
4. Step 4: Simplify right side
   123,462.16x = 12,347,826,981.77
5. Step 5: Solve for x
   x = 12,347,826,981.77/123,462.16
6. Step 6: Final answer
   x = 100,013.05