Finding the Fourth Proportional to 77,013, 115,185.96 and 45,347.58

Step by Step Solution

1. Step 1: Write the proportion equation
   77,013 : 115,185.96 = 45,347.58 : x
2. Step 2: Convert to fraction form
   77,013/115,185.96 = 45,347.58/x
3. Step 3: Cross multiply
   77,013x = 115,185.96 × 45,347.58
4. Step 4: Simplify right side
   77,013x = 5,223,404,535.98
5. Step 5: Solve for x
   x = 5,223,404,535.98/77,013
6. Step 6: Final answer
   x = 67,824.97