Finding the Fourth Proportional to 77,185.88, 106,521 and 43,194.07

Step by Step Solution

1. Step 1: Write the proportion equation
   77,185.88 : 106,521 = 43,194.07 : x
2. Step 2: Convert to fraction form
   77,185.88/106,521 = 43,194.07/x
3. Step 3: Cross multiply
   77,185.88x = 106,521 × 43,194.07
4. Step 4: Simplify right side
   77,185.88x = 4,601,075,530.47
5. Step 5: Solve for x
   x = 4,601,075,530.47/77,185.88
6. Step 6: Final answer
   x = 59,610.33