Finding the Fourth Proportional to 93,300.13, 139,972.06 and 30,970.63

Step by Step Solution

1. Step 1: Write the proportion equation
   93,300.13 : 139,972.06 = 30,970.63 : x
2. Step 2: Convert to fraction form
   93,300.13/139,972.06 = 30,970.63/x
3. Step 3: Cross multiply
   93,300.13x = 139,972.06 × 30,970.63
4. Step 4: Simplify right side
   93,300.13x = 4,335,022,180.74
5. Step 5: Solve for x
   x = 4,335,022,180.74/93,300.13
6. Step 6: Final answer
   x = 46,463.20