Finding the Fourth Proportional to 152,970.26, 211,060.78 and 91,726.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152,970.26 : 211,060.78 = 91,726.06 : x
2. Step 2: Convert to fraction form
   152,970.26/211,060.78 = 91,726.06/x
3. Step 3: Cross multiply
   152,970.26x = 211,060.78 × 91,726.06
4. Step 4: Simplify right side
   152,970.26x = 19,359,773,540.61
5. Step 5: Solve for x
   x = 19,359,773,540.61/152,970.26
6. Step 6: Final answer
   x = 126,559.07