Finding the Fourth Proportional to 152,193.31, 210,111.23 and 91,779.25

Step by Step Solution

1. Step 1: Write the proportion equation
   152,193.31 : 210,111.23 = 91,779.25 : x
2. Step 2: Convert to fraction form
   152,193.31/210,111.23 = 91,779.25/x
3. Step 3: Cross multiply
   152,193.31x = 210,111.23 × 91,779.25
4. Step 4: Simplify right side
   152,193.31x = 19,283,851,105.98
5. Step 5: Solve for x
   x = 19,283,851,105.98/152,193.31
6. Step 6: Final answer
   x = 126,706.30