Finding the Fourth Proportional to 156,422.22, 234,667.49 and 56,571.99

Step by Step Solution

1. Step 1: Write the proportion equation
   156,422.22 : 234,667.49 = 56,571.99 : x
2. Step 2: Convert to fraction form
   156,422.22/234,667.49 = 56,571.99/x
3. Step 3: Cross multiply
   156,422.22x = 234,667.49 × 56,571.99
4. Step 4: Simplify right side
   156,422.22x = 13,275,606,897.61
5. Step 5: Solve for x
   x = 13,275,606,897.61/156,422.22
6. Step 6: Final answer
   x = 84,870.34