Finding the Fourth Proportional to 152,641.98, 210,642.80 and 84,647.99

Step by Step Solution

1. Step 1: Write the proportion equation
   152,641.98 : 210,642.80 = 84,647.99 : x
2. Step 2: Convert to fraction form
   152,641.98/210,642.80 = 84,647.99/x
3. Step 3: Cross multiply
   152,641.98x = 210,642.80 × 84,647.99
4. Step 4: Simplify right side
   152,641.98x = 17,830,488,151.52
5. Step 5: Solve for x
   x = 17,830,488,151.52/152,641.98
6. Step 6: Final answer
   x = 116,812.48