Finding the Fourth Proportional to 152,419.25, 210,335.73 and 84,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,419.25 : 210,335.73 = 84,434.72 : x
2. Step 2: Convert to fraction form
   152,419.25/210,335.73 = 84,434.72/x
3. Step 3: Cross multiply
   152,419.25x = 210,335.73 × 84,434.72
4. Step 4: Simplify right side
   152,419.25x = 17,759,638,468.55
5. Step 5: Solve for x
   x = 17,759,638,468.55/152,419.25
6. Step 6: Final answer
   x = 116,518.34