Finding the Fourth Proportional to 152,449.86, 210,373.72 and 83,538.91

Step by Step Solution

1. Step 1: Write the proportion equation
   152,449.86 : 210,373.72 = 83,538.91 : x
2. Step 2: Convert to fraction form
   152,449.86/210,373.72 = 83,538.91/x
3. Step 3: Cross multiply
   152,449.86x = 210,373.72 × 83,538.91
4. Step 4: Simplify right side
   152,449.86x = 17,574,391,876.80
5. Step 5: Solve for x
   x = 17,574,391,876.80/152,449.86
6. Step 6: Final answer
   x = 115,279.82