Finding the Fourth Proportional to 56,061, 77,369.64 and 30,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,061 : 77,369.64 = 30,910.50 : x
2. Step 2: Convert to fraction form
   56,061/77,369.64 = 30,910.50/x
3. Step 3: Cross multiply
   56,061x = 77,369.64 × 30,910.50
4. Step 4: Simplify right side
   56,061x = 2,391,534,257.22
5. Step 5: Solve for x
   x = 2,391,534,257.22/56,061
6. Step 6: Final answer
   x = 42,659.50