Finding the Fourth Proportional to 77,895.51, 107,495.64 and 42,085.41

Step by Step Solution

1. Step 1: Write the proportion equation
   77,895.51 : 107,495.64 = 42,085.41 : x
2. Step 2: Convert to fraction form
   77,895.51/107,495.64 = 42,085.41/x
3. Step 3: Cross multiply
   77,895.51x = 107,495.64 × 42,085.41
4. Step 4: Simplify right side
   77,895.51x = 4,523,998,082.61
5. Step 5: Solve for x
   x = 4,523,998,082.61/77,895.51
6. Step 6: Final answer
   x = 58,077.78