Finding the Fourth Proportional to 152,488.77, 210,428.78 and 84,503.99

Step by Step Solution

1. Step 1: Write the proportion equation
   152,488.77 : 210,428.78 = 84,503.99 : x
2. Step 2: Convert to fraction form
   152,488.77/210,428.78 = 84,503.99/x
3. Step 3: Cross multiply
   152,488.77x = 210,428.78 × 84,503.99
4. Step 4: Simplify right side
   152,488.77x = 17,782,070,046.17
5. Step 5: Solve for x
   x = 17,782,070,046.17/152,488.77
6. Step 6: Final answer
   x = 116,612.33