Finding the Fourth Proportional to 152,191.56, 210,108.81 and 91,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,191.56 : 210,108.81 = 91,777.50 : x
2. Step 2: Convert to fraction form
   152,191.56/210,108.81 = 91,777.50/x
3. Step 3: Cross multiply
   152,191.56x = 210,108.81 × 91,777.50
4. Step 4: Simplify right side
   152,191.56x = 19,283,261,835.05
5. Step 5: Solve for x
   x = 19,283,261,835.05/152,191.56
6. Step 6: Final answer
   x = 126,703.89