Finding the Fourth Proportional to 77,881.55, 107,476.39 and 42,071.45

Step by Step Solution

1. Step 1: Write the proportion equation
   77,881.55 : 107,476.39 = 42,071.45 : x
2. Step 2: Convert to fraction form
   77,881.55/107,476.39 = 42,071.45/x
3. Step 3: Cross multiply
   77,881.55x = 107,476.39 × 42,071.45
4. Step 4: Simplify right side
   77,881.55x = 4,521,686,925.50
5. Step 5: Solve for x
   x = 4,521,686,925.50/77,881.55
6. Step 6: Final answer
   x = 58,058.52